Stuffing box



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, ATTORNEYS.

Patented Nov. Ill, 1924:.

FREDERICK L. G.

KOLLMORGEN TION OF NEW YORK.

STUFFING BOX.

Application filed February 2, 1922. Serial No. 533,556.

To all whom it may concern:

Be it known that I, FREDERICK L. G. KoLL- MORGEN, a citizen of the United States, and a resident of Mountain Lakes, county of Morris, and State of New Jersey, have invented certain new and useful Improvements in btufling Boxes, of which the following is a specification.

My invention relates to an improvement in stufling boxes and an object thereof is the provision of a structure whereby one member may have movement relative to another member without, however, breaking the seal between the two members.

In order that my invention may be clearly understood I will describe the same as applied to submarine periscopes but it is to be understood that this application is merely illustrative and not definitive.

In the most modern design the periscope is composed of two tubes mounted within a suitable housing, one of these tubes, to wit, the so-called sight tube, being fixed so far as vertical movement is concerned, the other tube, however, having vertical movement for observation purposes. These tubes are sealed within the housing and it is the purpose of the present invention to provide a stuffing box structure for one of these tubes, to wit, the vertically adjustable tube, whereby the tube may be extended or withdrawn without admitting moisture to. the housing. v

It will be understood, of course, that in periscope work it is essential that the seal between the two tubes be maintained unbroken as the admission of moisture to the interior of the housing within which the tubes are mounted will cause the lenses of the periscope to become fogged and the periscope rendered unfit for service- The housing within which the sight tube and the observation tube are mounted is usually fixed to the hull of a submarine at a point adjacent the bottom thereof and ex" tends upwardly, the observation tube extending through the deck of the submarine.

Inasmuch as the material of which sub-- marines are constructed is comparatively thin there is more or less displacement of the bottom of the submarine relative to the deck. This results in forcing the housing out of alinement with the observation tube so that leaking occurs at the stuffing box through which the observation tube passes into the housing. This, of course, enables moisture to work past the stufling box to the interior or the tube housing, causing the lenses of the periscope tobecome fogged, thereby rendering the periscope unfit for use.

KoLLMonenn, or MOUNTAIN LAKES, new annsnv, ASSIGNOR To OPTICAL conroaa'rron, or neooxm'n. new YORK, A oonrona- By my improved stufling box Inot only 7 tional elevation, showing the same in place on a submarinev periscope.

Referring to thedrawing in detail,-1 designates a housing within which is sealed a sight tube Q'and observation tube 3 of a submarine periscope. The housing 1 is secured to the hull of a submarine at a point adjacent the bottom thereof in the usual manner and isprovided with a cap 5 by which access may be had to the sight tube 2.

The observation tube 3 passes through the housing 1 to one side of the sight tube 2 and extends up through the deck 4 of the submarine. At the point where the tube 3 passes through the housing I provide my improved stufiing box whereby the tube 3 may be adjusted vertically in the housing 1 without, however, any danger of admitting moisture to the interior of the housing.

At 6 as indicatedon the drawing I provide a flange on the housing 1, this flange receiving a ring 7 which is screwed into the housing as indicated at "8. Immediately above the ring 7 I provide aconcave seat member 9 which is screwed into the h0using as indicated at 10. The seat 9 co-operates with a spherical bearing member 11, packing 12 being interposed between the spherical member 11 and the seat therefor. The spherical bearing 11 is provided with a shoulder 13 adjacent the lower end thereof, which shoulder receives and supports packing 14 which is in constant engagement with the walls of the observation tube 3. In order that the seat 9 and the ring 7 already referred to may be held down and also in order that the packing 12 may be held in place at all times I provide a flanged ring 15 which is screwed into the upper end of the housing 1 and the lower end of which engages the top of the sectional seat 9.

Immediately above the flanged ring 15 I provide a clamping ring 16 which ring is provided with al downwardly extending sleeve or flange 17 engaging the upper edge of the packing 12.

Above the clamping ring 16 I provide a gland 18 having a downwardly extending sleeve 19 which is screw-threaded and which is screwed into the spherical bearing member 11. This gland 18 after it has been screwed down in place is bolted to a wiper 19 held in place by a clamp 20.

The observation tube 3 is also provided with an additional wiper 21. 22 designates a main stuffing box which is secured to the deck of the submarine.

It will be seen from the foregoing that my improved stutfing box comprises a seat member 9,-spherical bearing member 11 and the packing 12, these parts being held securely in position and while vertical adjustment of the observation tube 3 is per mitted at all times the entrance of moisture to the interior of the housing 1 is always effectually prevented.

It will be seen also that by reason of the provision of the spherical bearing member 11' and the concave seat 9 a more or less universal movement of the observation tube 3 within the required limits is permitted with respect to the housing 1 so that relative displacement of the bottom and deck of the submarine which may throw the tube 3 and the housing out of alinement will not cause leakage past my improved stufling box. r

Vhile I have described a specific embodiment of my improved stuii'ing box it is to be understood, of course, that changes may be made in the details thereof within the purview of this invention.

I- claim:

1. In a stuffing'box, the combination of a mounting for the stufling box, a ring removably secured therein, a concave seat secured to said ring and said mounting, a spherical bearing co-operating with said seat, packing between said bearing and said seat,- and means removably secured to said mounting for holding said ring, seat and packing in place.

2. In a stufling box, the combination of a mounting for the stutling box, a concave seat mounted therein, a spherical bearing member co-operating with said seat, pack ing between said bearing member and its seat, means for holding said packing and the said seat in place in the said mounting, and a gland for holding said spherical hearing member in place.

3. In a stuffing box, the combination of a mounting for the stufiing box, a flange thereon, a ring resting on said flange and screwed into said mounting, a seat member screwed into said mounting and resting upon said ring and a ring or cap screwed into said mounting and engaging said seat to hold the same and said ring in place in the mounting.

1. In a stuffing box, the combination of a mounting, a sectional seat therein, a spherical bearing member for said seat, a ring secured to said mounting for holding the seat in place, and a gland for supporting said bearing member in place in its seat.

5. In combination, an observation tube, a

housing in which the tube is vertically adjustable, and a stufiing box for said tube for permitting universal movement of the tube in the housing while preventing the passage of moisture into the housing.

6. In combination, an observation tube, a sealed housing, a sight tube, said observation tube being universally adjustable in said housing, the sight tube being fixed against vertical adjustment, and a stufling box for preventing the passage of moisture to the interior of the housing during manipulation of the observation tube.

7. In combination, a housing, an observation tube and a sight tube, said housing and tubes being sealed, said observation tube having universal movement with respect to said housing, and a stufiing box for permitting this movement of the observation tube but preventing the entrance of moisture to the interior of the housing.

8. In combination, a housing, an observation tube slidably mounted therein, a concave seat in said housing and a spherical FREDERICK L. c. KOLLMOR-GEN. 

